Mix 1 cup flour with a pinch or two of salt. Cut in 1/3 cup vegetable shortening using a fork or other fancy device. Add, one by one, up to 3 tablespoon water, dispersing the water as evenly as possible. Err on the side of less water~you will get a flakier crust. Roll out the dough onto waxed paper or plastic wrap. Place into a pie dish and form those fluted edges if you want. Poke holes in the dough with a fork and bake until slightly golden, about 5-10 min at 425 deg F.
Filling:
Melt the chocolate and blend with the tofu, peanut butter, and vegan sugar adding soy milk to the desired texture (I've found some silken tofus to be more silken than others). Vary the vegan sugar to taste. Pour into the baked pie crust and refridgerate.